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yap-6.3/docs/fli.md

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The Foreign Code Interface

YAP provides the user with three facilities for writing predicates in a language other than Prolog. Under Unix systems, most language implementations were linkable to C, and the first interface exported the YAP machinery to the C language. YAP also implements most of the SWI-Prolog foreign language interface. This gives portability with a number of SWI-Prolog packages and avoids garnage collection by using @ref slotInterface. Last, a new C++ based interface is being designed to work with the swig (www.swig.orgv) interface compiler.

  • The @ref c-interface exports the YAP engine.

  • The @ref swi-c-interface emulates Jan Wielemaker's SWI foreign language interface.

  • The @ref yap-cplus-interface is desiged to interface with the SWIG package by using Object-Oriented concepts

  • The @ref LoadInterface handles the setup of foreign files